'use strict';

define([], function () {
    var add = function (x, y) {
        return x + y;
    };
    var subtract = function (x, y) {
        return x - y;
    };
    var multiply = function (x, y) {
        return x * y;
    };
    var divide = function (x, y) {
        return x / y;
    };
    return {
        add: add,
        subtract: subtract,
        multiply: multiply,
        divide: divide
    };
});